>I have a container class with three ComboBoxes in it. How can I tell FP which one should initailize first, because having the controlsource and init event setup in the first box is required for the other two to work.

I guess you could add the combos at runtime, in the order you would prefer them, would be one way. Otherwise, you may need to run a more global method in the container or even the form init, something that's guaranteed to run later...